The Aether is a 'hostile paradise', composed of floating sky islands filled with strange creatures and great mysteries. Brave adventurers who wish to explore this forgotten paradise merely only have to compose a portal out of glowstone and ignite it with a bucket of water.

Implements new ways of potion brewing, combining potions together and getting potion effects not obtainable through vanilla alchemy. It also adds new ways of storing potions and some new blocks to decorate the alchemical lab.

Changes the properties of the non-snowy biomes in Minecraft, lowering their ambient temperatures and essentially cooling them down so that snow and ice will not melt when generated. It then switches on the biomes' toggles for snowfall. The result is all biomes have snow in them, and when precipitation falls it is always snow (except in ocean biomes).

An expansion of Minecraft's fishing system. You never know what you'll catch. Every biome is home to tons of unique fish you can only catch in that biome, and there's a myriad of new loot items you can randomly catch while fishing.

Automatically switches to the correct tool when mining a block and automatically uses the correct weapon when attacking a mob or a player. Also switches back to your previous item when you are done mining or attacking a mob, useful for building and going on mining trips.